자원리싸이클링 (Resources Recycling)

  • 제33권2호
  • /
  • Pages.37-45
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  • 2024
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  • 2765-3439(pISSN)
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  • 2765-3447(eISSN)
한국자원리싸이클링학회 (The Korean Institute of Resources Recycling)
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몰리브덴광 부유선별 공정 최적화를 위한 기초 선광 특성 평가

Evaluation of Basic Beneficiation Characteristics for Optimizing Molybdenum Ore Flotation Process

  • 한성수 (한국지질자원연구원 자원활용연구본부 자원회수연구센터) ;
  • 서주범 (한국지질자원연구원 자원활용연구본부 자원회수연구센터)
  • Seongsoo Han (Mineral processing and metallurgy research center, Resource Utilization Division, Korea Institute of Geoscience and Mineral Resources (KIGAM)) ;
  • Joobeom Seo (Mineral processing and metallurgy research center, Resource Utilization Division, Korea Institute of Geoscience and Mineral Resources (KIGAM))
  • 투고 : 2024.02.05
  • 심사 : 2024.03.13
  • 발행 : 2024.04.30
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초록

몰리브덴은 높은 내열성, 내부식성에 의해 다양한 산업에 적용되어, 우리나라의 핵심광물로 선정된 중요한 금속이다. 그러나 최근 몰리브덴 광맥의 저품위화로 인해 생산에 어려움을 겪고 있어, 몰리브덴 선광 공정에 대한 효율 향상이 필요하다. 본 연구에서는 국내 몰리브덴광 선광 공정의 효율 향상을 위한 기초 선광 특성 평가 연구를 수행하였다. 기초 선광 특성은 광물학적 분석, 분쇄일지수, 부유선별 속도 분석으로 평가되었다. 분석 결과, 단체분리가 가능한 몰리브덴광의 입자 크기는 ~100 ㎛였으며, 분쇄 일지수는 14.57 kWh/t로 산출되었다. 또한 부유선별 속도 분석을 통해, 부유선별 단위 공정 각각의 최적 부유선별 시간을 제공함으로써 최적화를 위한 운영 조건을 확립하였다. 마지막으로 본 연구에서 제공한 몰리브덴광 기초 선광 특성 정보는 향후 산업 규모의 몰리브덴 선광 플랜트의 분쇄 및 부유선별 공정을 진단하는 데 활용될 예정이다.

Molybdenum is used in various industries because of its high heat and corrosion resistance. It was selected as a critical mineral in Korea. However, there have been recent challenges in production because of the increased depth and decreased grade of molybdenum veins. Consequently, it is necessary to enhance the effectiveness of the molybdenum beneficiation process. In this study, a basic evaluation of beneficiation characteristics was conducted to enhance the effectiveness of the domestic molybdenum ore beneficiation process. The properties of the beneficiation process were assessed using mineralogical analysis, work index, and flotation kinetics. The results revealed that the allowable particle size of the molybdenum ore for liberation was ~100 ㎛. In addition, the work index was calculated to be 14.57 kWh/t. The operating conditions in the flotation units were achieved by determining the optimal flotation time for each process based on flotation kinetics. Finally, the characteristics of molybdenum ore beneficiation provided in this study can be utilized to diagnose the grinding and flotation processes of large-scale molybdenum beneficiation plants.

키워드

과제정보

본 연구는 한국지질자원연구원 주요사업인 '국내 부존 바나듐(V) 광물자원 선광/제련/활용기술 개발(GP2020-013, 24-3212)과 'K-배터리 원료광물(Ni, Co) 잠재성 평가 및 활용기술 개발(GP2023-004, 24-3215)' 과제, 산업통상자원부(MOTIE)와 한국에너지기술평가원(KETEP)의 일환으로 수행되었습니다(No. 20227A10100030).

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